#include <stdio.h>
#include <stdlib.h>
#include "sqlite3.h"

static int callback(void *data, int argc, char **argv, char **azColName){
   int i;
   fprintf(stderr, "%s: ", (const char*)data);
   for(i=0; i<argc; i++){
      printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
   }
   printf("\n");
   return 0;
}

int main(int argc, char *argv[])
{
    sqlite3 *db;
    char *zErrMsg = 0;
    int rc;
    char *sqlstr;
    const char *data = "Callback function called";

    // Open database
    rc = sqlite3_open("test.db", &db);
    if(rc)
    {
        fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
        exit(1);
    }
    else
    {
        fprintf(stderr, "Opened database successfully\n");
    }

    // Create SQL statement
    sqlstr = "SELECT * from COMPANY";

    // Execute SQL statement
    rc = sqlite3_exec(db, sqlstr, callback, (void*)data, &zErrMsg);
    if(rc != SQLITE_OK)
    {
        fprintf(stderr, "SQL error: %s\n", zErrMsg);
        sqlite3_free(zErrMsg);
    }
    else
    {
        fprintf(stderr, "Operation done successfully\n");
    }
    
    sqlite3_close(db);
    exit(0);
}